Step 1

Melt butter - Place a medium skillet over medium heat. Melt the butter.

Step 2

Caramelize onions - Add chopped onions and cook for 5 minutes. Season with salt and pepper and stir. Continue to cook for another 15-20 minutes, until the onions are caramelized and browned.

Step 3

Add water, stir, repeat - Add about a tablespoon of water every few minutes and give the onions a stir. This rehydrates the onions and deglazes the pan, incorporating all of the browned flavorful bits that get stuck on the pan. Repeat this until the onions are deep brown and caramelized.